var HeadSprite = cc.Sprite.extend({
	ctor:function(chess){
		var x = chess.picno % 5;
		var y = Math.floor(chess.picno/5);
		this._super(chess.piece, cc.rect(x*100, y*100, 100, 100));
		this._setAnchorX(0);
		this._setAnchorY(0);
		this.setPosition(0,0);
		this.setLocalZOrder(2);
	}
});